9.8

CVE-2020-15900

A memory corruption issue was found in Artifex Ghostscript 9.50 and 9.52. Use of a non-standard PostScript operator can allow overriding of file access controls. The 'rsearch' calculation for the 'post' size resulted in a size that was too large, and could underflow to max uint32_t. This was fixed in commit 5d499272b95a6b890a1397e11d20937de000d31b.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Artifex ≫ Ghostscript Version 9.50
Artifex ≫ Ghostscript Version 9.52
Canonical ≫ Ubuntu Linux Version 20.04 SwEdition lts
Opensuse ≫ Leap Version 15.1
Opensuse ≫ Leap Version 15.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 5.19% 0.914
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NIST 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
CWE-191 Integer Underflow (Wrap or Wraparound)

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

http://git.ghostscript.com/?p=ghostpdl.git%3Ba=log
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00006.html
Third Party Advisory
Mailing List
https://artifex.com/security-advisories/CVE-2020-15900
Vendor Advisory
https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=5d499272b95a6b890a1397e11d20937de000d31b
https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31b
Patch
Third Party Advisory
https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.c
Patch
Third Party Advisory
https://security.gentoo.org/glsa/202008-20
Third Party Advisory
https://usn.ubuntu.com/4445-1/
Third Party Advisory